As to your question about what child support is supposed to cover, there are no set rules. Its intended purpose is to "support the children" so that includes: Housing, electricity, water, food, essential items (school supplies, personal care items,etc...), things that are used in direct relation to the child and their everyday living. It is not intended to support the parents lifestyle, holidays, trips, personal grooming, entertainment.
I've done a little research and it sounds like in the state of FL. that they take your net, her net, how many kids you have and what percentage of the time will the children spend with each parent and that is the formula used.
M:39 H:39 K:S14;D8 T:22yr M:15yrs S:12/28/07 EA/PA 3/14/08 OW preg 11/17/08 born 12/12/08 his ~~~~~~~ Never allow someone to be your priority while allowing yourself to be their option